Calculate the %N in (NH4)2C2O4

To calculate the %N in (NH4)2C2O4 the first step is to count how many of each atom is in the molecule. In this case you have in the parenthesis 2N and 8H then outside of the parenthesis you have 2C and 4O. To figure out the % N in the molecule you have to add up all of the atomic masses of each individual atom together. Then you can divide the atomic mass of 2N by the overall atomic mass of the entire molecule. That number you multiply by 100%. That is how you get your answer. I also am showing the work below in case that would help you as well.